For example, the speed of sound in gases depends on temperature. In 20 Â°C (68 Â°F) air at sea level, the speed of sound is approximately 343 m/s (1,230 km/h; 767 mph) using the formula v = (331 + 0.6 T) m/s. In fresh water, also at 20 Â°C, the speed of sound is approximately 1,482 m/s (5,335 km/h; 3,315 mph).
    It is used in computer chips. Metaloids are elements on the periodic table that are not true metals, but have some characteristics of metals, like electric conduc â¦ tivity. You would not want to wire your house with silicon wires, but silicon is used for computer chips for various reasons.he metalloids can be defined as those elements which exhibit characteristics of both metals and nonmetals. They are all solids, but not lustrous, and conduct heat and electri â¦ city moderately well. The six metalloids treated here are listed below, with the atomic number and chemical symbol of each.05.
metalloid. Noun. (plural metalloids). ( 1 chemistry) An element, such as silicon or germanium, intermediate in properties between that of a metal and a nonmetal; especially one that exhibits the external characteristics of a metal, but behaves chemically more as a nonmetal.